on-line support program的用法和样例：
例句
- Online support comes in the form of forums, chat rooms, online bulletin boards, e-mail, or live instant-messaging support.
在线支持通过论坛，聊天室，在线公告牌，电子邮件，或者实时消息这些形式来实现。 - The post-sale service portfolio that comes with the disk-to-disk backup and data archiving project ranges from online support to onsite support.
本硬盘对硬盘及数据归档工程提供从在线支持到现场支持的售后服务项目。
